PPT-Group Blue Block 1 Chapter 8: Chemical Reactions and Physical Changes

Objectives Compare chemical reactions to physical changes Compare parts of an atom Calculate the mass of one mole of an element or compound Explain how ionic and covalent bonds are formed Identify the parts of chemical equations. Physical Science Notes. Physical Properties. PHYSICAL PROPERTY . - A feature or characteristic of matter which can be observed without changing the identity of the matter . Examples. :. . . Color. Matter. Every element/compound is unique in some way from all others.. If you know enough about a substance, you can figure out what it is.. If you know what a substance is, you can know all types of things about it.. Theme: . Changes and Reactions . LecturePLUS Timberlake. 2. color. melting point. boiling point. electrical conductivity. specific heat. density . state (solid, liquid, or gas). . Blue Color. Blue Color. Physical property. Density. Density. Physical property. Flammability. Flammability. Chemical property- The original substance is fundamentally changed. . Solubility- (dissolves into a liquid to make a solution). H. ow do we know chemical reaction . happened yesterday?. major, unexplained, . color change. major, unexplained . temperature change. major, unexplained . bubbles . gas created. . precipitate forms.. How to tell the difference. Physical properties. Inherent characteristics of a substance that can be determined without altering its composition. Associated with its physical existence. Color, taste, odor, state of matter (solid, liquid, or gas), density, melting point, boiling point.. Property. Is a description of an object. The tree is TALL. The tree is GREEN. If struck by lighting, the tree could catch FIRE (BURN). Physical Properties. Are determined by the use of the . . . . 10.1 . Reactions and . Equations. Evidence of Chemical Reactions. ..  . The process of which the atoms of one or more substances are rearranged to form different substances is called a . Chemical Reaction. CONTENTS. CHEMICAL REACTION. CHARACTERISTICS OF CHEMICAL REACTION. TYPES OF CHEMICAL EQUATION. BALANCING OF CHEMICAL EQUATION. HOW TO MAKE EQUATION MORE INFORMATIVE. Changes or transforms chemicals into . other. chemicals. Ex: Iron + Oxygen . . Iron Oxide (rust). Physical Science Review. What is the product?. What are the reactants?. Chemical formula. . shows the kind and proportion of atoms of each element that occurs in a particular compound. 83 Lesson 3: Enzyme Regulation of Biochemical Reactions What is a biological catalyst? This super - fast train can obviously reach great speeds. And there's a lot of technology that helps this train Learning Target:. Be able to calculate the amount of energy absorbed or released during a chemical or physical change.. Learning Outcomes:. Know how to apply the 1. st. Law of Thermodynamics to chemical reactions. . All. chemical reactions either release or absorb energy. . The energy can take many forms: . HEAT. , . LIGHT. , . SOUND. , and . ELECTRICITY. . Chemical . bonds. are the source of this energy. . Write your answer in your. . science journal.. Quiz. 1. How . many molecules of oxygen gas in the reactant (O. 2. ) are needed to balance this equation?. CH. 4. + O. 2. → 2CO. 2. + 4H. 2. O.